Potassium → N-(3-Butoxy-2-oxo-1-sulfo-3-azetidinyl)-2-phenylacetamide, tetrabutylammonium salt

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Reaction Steps

Following the procedure of Example 80, but substituting N-chloro-N-(2-oxo-1-sulfo-3-azetidinyl)-2-phenylacetamide, tetrabutylammonium salt (see Example 47A for preparation of the corresponding potassium salt) for 2-oxo-3-[N-chloro-N-[(phenylmethoxy)carbonyl]amino]-1-azetidinesulfonic acid, tetrabutylammonium salt, yields the title compound as an oil: nmr (CDCl3) 3.62 (s, 2H, C6H5CH2), 4.03 (ABq, 2H, ν=7 cps, C-4 CH2), 6.98 (s, 1H, NH) and 7.30 ppm (S, 5H, C6H5).

Provenance & Evidence